Nonstop flight route between Grand Forks, North Dakota, United States and Den Helder, Netherlands:

About this route:

A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and De Kooy Airfield (DHR), Den Helder, Netherlands would travel a Great Circle distance of 4,112 miles (or 6,617 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Grand Forks Air Force Base and De Kooy Airfield, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Grand Forks Air Force Base and De Kooy Airfield. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Grand Forks Air Force Base (RDR):

• On 26 May 1972, President Nixon and Soviet general secretary Leonid Brezhnev signed the ABM Treaty, which limited each nation to one site to protect strategic forces and one site to protect the "National Command Authority." With work about 85 percent complete at Grand Forks, the United States chose to finish construction at the North Dakota site.
• The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
• In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.
• The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
• Grand Forks Air Force Base is a United States Air Force installation in northeastern North Dakota, located north of Emerado and 16 miles west of Grand Forks.

Facts about De Kooy Airfield (DHR):

• In addition to being known as "De Kooy Airfield", other names for DHR include "Vliegveld De Kooy", "Den Helder Airport" and "Maritiem Vliegkamp De Kooy".
• There are currently no scheduled services to and from Den Helder.
• De Kooy Airfield (DHR) currently has only 1 runway.
• Because of De Kooy Airfield's relatively low elevation of 4 feet, planes can take off or land at De Kooy Airfield at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The closest airport to De Kooy Airfield (DHR) is Amsterdam Airport Schiphol (AMS), which is located 43 miles (68 kilometers) S of DHR.
• The furthest airport from De Kooy Airfield (DHR) is Chatham Islands (CHT), which is located 11,805 miles (18,998 kilometers) away in Waitangi, Chatham Islands, New Zealand.